Question

$(-\frac{2}{3})^{2} + \frac{2}{7} - \frac{4}{7} -3( \frac{7}{5} )+ \frac{5}{4} }$ como se resolve 

Answer 1

$(- \frac{2}{3} )^2+ \frac{2}{7}- \frac{4}{7}-3 (\frac{7}{5})+ \frac{5}{4}= \\ \\ \frac{4}{9}+ \frac{2}{7}- \frac{4}{7}- \frac{21}{5}+ \frac{5}{4}= \\ \\ \frac{560+360-720-5292+1575}{1260}= \\ \\ -\frac{3517}{1260}$

Answer 2

$\frac{4}{9} + \frac{2}{7} - \frac{4}{7} - \frac{21}{5} + \frac{5}{4} = 0$



$\frac{560+360-720-5252+315}{1260}$

$\frac{-3517}{1260} =$